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NEET levelSingle correct optionDifficulty 1 of 3nm096

The IUPAC name of $CH X_{3} CH X_{2} - CN$ is:

Apropanenitrile
Bpropanamide
Cethanenitrile
Dbutanenitrile

Answer: A

In a nitrile the carbon of -CN is counted as part of the chain. The chain

CH X_{3} - CH X_{2} - C \equiv N

has three carbons, so the name is propanenitrile.

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